[jira] [Created] (HDFS-5455) NN needs to update storageMap on first heartbeat

["Arpit Agarwal (JIRA)" <ji...@apache.org>]

Arpit Agarwal created HDFS-5455:
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             Summary: NN needs to update storageMap on first heartbeat
                 Key: HDFS-5455
                 URL: https://issues.apache.org/jira/browse/HDFS-5455
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: namenode
    Affects Versions: Heterogeneous Storage (HDFS-2832)
            Reporter: Arpit Agarwal
            Assignee: Arpit Agarwal


Currently the NN updates {{DatanodeDescriptor#storageMap}} while processing block reports but not from heartbeats. This results in the {{DatanodeStorageInfo#blockContentsStale}} being stale even after the first heartbeat is received.
{code}
  void receivedBlockReport() {
    if (heartbeatedSinceFailover) {
      blockContentsStale = false;
{code}

To preserve existing behavior we can just start updating storageMap if we see a new storage ID in a heartbeart.



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